Tangs for nothing

Our Trigger got picked up by Linny on Tuesday. He is going to a new home....causing too much trouble in the tank. Fins nipped etc and STRESS...so off he goes and then...our Tang died yesterday. Just too stressed and not right. Now, today, Pinky is looking BAD. Not himself...maybe the Tang brought something and it is now going to affect all of our fish? OH NO...this tank was soooo perfect. Now? I hope that this stops......I really was getting happy with our SW hobby. Now, it just pisses me off...I don't want this tank to have issues...it was doing too well.